Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-03-02 Thread Alex P
-user-boun...@ffmpeg.org] On Behalf Of Roger Pack Sent: Tuesday, February 27, 2018 8:03 PM To: FFmpeg user questions Subject: Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture consider also libx264 "ultrafast" preset, GL! On Tue, Feb 13, 2018 at 7:57 AM, Alex P <ale...@avenview.com&

Re: [FFmpeg-user] Fisheye-equirectangular in real time

2018-02-28 Thread Alex P
What is the source of the video? From my quick googling, lens information and other metadata is needed for fisheye to equirectangular conversion. -Alex P -Original Message- From: ffmpeg-user [mailto:ffmpeg-user-boun...@ffmpeg.org] On Behalf Of Edward Bellamy Sent: Wednesday, February

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-13 Thread Alex P
Video Capture On Tue, Feb 13, 2018 at 6:57 AM, Alex P <ale...@avenview.com> wrote: > I think I've figured it out. When I use nv12 or yuv420p as the input > and output pixel format, I get x1 performance. If I use bgr24/rgb24 as > the input and yuv444p as the output, I get around x0.3

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-13 Thread Alex P
I think I've figured it out. When I use nv12 or yuv420p as the input and output pixel format, I get x1 performance. If I use bgr24/rgb24 as the input and yuv444p as the output, I get around x0.3. But even when I use bgr0 for the input and output, I get less than x1. Does anyone know what

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-12 Thread Alex P
Hi James, I get the same issue with this command: ffmpeg -f dshow -video_size 3840x2160 -framerate 6/1001 -rtbufsize 21 -pixel_format bgr24 -i video="MZ0380 PCI, Analog 01 Capture" -c:v h264_nvenc -preset lossless -f null - Is there a way to accelerate the decoding of rawvideo?

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-12 Thread Alex P
uot;MZ0380 PCI, Analog 01 Capture" -c:v rawvideo raw.nut Only gets me x0.5 and the buffer overflows. Is there a way of accelerating rawvideo decoding? Would using my colleagues 1080 make a difference? Thanks. -Alex P -Original Message- From: ffmpeg-user [mailto:ffmpeg-user-boun...@

Re: [FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-12 Thread Alex P
] 4K 60Hz Directshow Video Capture On Mon, Feb 12, 2018 at 7:37 AM, Alex P <ale...@avenview.com> wrote: > Windows 10 > > Intel i7-8700K > > GTX 1050Ti > > 16GB DDR4 > > SATA Samsung Evo > > > > I'm using a Yuan 4K60 capture card with the end goal of c

[FFmpeg-user] 4K 60Hz Directshow Video Capture

2018-02-12 Thread Alex P
Windows 10 Intel i7-8700K GTX 1050Ti 16GB DDR4 SATA Samsung Evo I'm using a Yuan 4K60 capture card with the end goal of capturing the video in a lossless format. I need it to be lossless as the clips will be used to test hardware h264 encoders. Product page: